IP Library Granted Patent US 10,049,967
Granted Patent B2
US 10,049,967 · App. 15/737,525 · Granted Aug 14, 2018

Method of producing an optoelectronic component and optoelectronic component

Inventors: Martin Brandl (Kelheim, DE); Ion Stoll (Tegernheim, DE); Michael Wittmann (Alteglofsheim, DE)
Assignee: OSRAM Opto Semiconductors GmbH
H01L23/49541H01L25/0753H01L25/167H01L31/0203H01L33/486H01L33/505H01L33/60H01L33/62H01L2224/48247H01L2924/12041H01L2933/0066
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Quick Facts
Patent No.
US 10,049,967
App. No.
15/737,525
Granted
Aug 14, 2018
Kind
B2
Abstract

A method of producing an optoelectronic component includes providing a lead frame having an upper side including a contact region and a chip reception region raised relative to the contact region; arranging an electrically conductive element on the contact region; embedding the lead frame in a molded body, wherein the contact region is covered by the molded body, and the chip reception region and the electrically conductive element remain accessible on an upper side of the molded body; arranging an optoelectronic semiconductor chip on the chip reception region; and connecting the optoelectronic semiconductor chip and the electrically conductive element by a bonding wire.

Claims (34)

1. A method of producing an optoelectronic component comprising:

providing a lead frame having an upper side comprising a contact region and a chip reception region raised relative to the contact region;

arranging an electrically conductive element on the contact region;

embedding the lead frame in a molded body, wherein the contact region is covered by the molded body, and

the chip reception region and the electrically conductive element remain accessible on an upper side of the molded body;

arranging an optoelectronic semiconductor chip on the chip reception region; and

connecting the optoelectronic semiconductor chip and the electrically conductive element by a bonding wire.

2. The method according to claim 1 , wherein the electrically conductive element is arranged on the contact region such that it protrudes beyond the chip reception region, and the electrically conductive element is pressed flat before the embedding of the lead frame in the molded body such that the electrically conductive element has the same height as the chip reception region.

3. The method according to claim 2 , wherein pressing the electrically conductive element flat is carried out by a closure pressure of a molding tool.

4. The method according to claim 1 , wherein the electrically conductive element is arranged in a recess provided in the contact region.

5. The method according to claim 1 , wherein the electrically conductive element is fixed on the contact region by an electrically conductive bonding medium.

6. The method according to claim 1 ,

wherein the lead frame is provided having a first lead frame section and a second lead frame section,

an electrically conductive element is respectively arranged on the upper side of the first lead frame section and on the upper side of the second lead frame section, and

the two electrically conductive elements connect to the optoelectronic semiconductor chip via bonding wires.

7. The method according to claim 1 further comprising:

arranging a protective chip on the upper side of the lead frame, the protective chip being embedded in the molded body.

8. An optoelectronic component comprising a carrier and an optoelectronic semiconductor chip,

wherein the carrier comprises a lead frame embedded in a molded body,

the lead frame comprises an upper side having a contact region and a chip reception region raised relative to the contact region,

an electrically conductive element is arranged on the contact region,

the contact region is covered by the molded body,

the chip reception region and the electrically conductive element are accessible on an upper side of the molded body, and

the optoelectronic semi-conductor chip is arranged on the chip reception region and connects to the electrically conductive element by a bonding wire.

9. The optoelectronic component according to claim 8 , wherein the chip reception region is flush with a section of the upper side of the molded body.

10. The optoelectronic component according to claim 8 , wherein the chip reception region has an undercut at the boundary with the contact region.

11. The optoelectronic component according to claim 8 ,

wherein the molded body forms a cavity on its upper side, and

the optoelectronic semiconductor chip is arranged in the cavity.

12. The optoelectronic component according to claim 8 , wherein the lead frame is accessible on a lower side, lying opposite the upper side, of the molded body.

13. The optoelectronic component according to claim 8 , wherein the optoelectronic component comprises a further optoelectronic semiconductor chip.

14. The optoelectronic component according to claim 13 ,

wherein the lead frame comprises a further chip reception region raised relative to the contact region, and

the further optoelectronic semiconductor chip is arranged on the further chip reception region.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 3, 2020
From: OSRAM OPTO SEMICONDUCTORS GMBH
To: OSRAM OLED GMBH
Reel/Frame 051467/0906 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 31, 2018
From: BRANDL, MARTIN; STOLL, ION; WITTMANN, MICHAEL
To: OSRAM OPTO SEMICONDUCTORS GMBH
Reel/Frame 044780/0966 →
Priority Claims (1)
DE 10 2015 109 876 · Jun 19, 2015 · national
Continuity (1)
Related Publication 20180114744A1 · Apr 26, 2018